A nurse is preparing to administer carbamazepine suspension 150 mg via NG tube every 6 hr. The amount available is 100 mg/5 mL. How many mL should the nurse administer with each dose?

(Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

The correct answer is Choice A.

Choice A rationale: Assigning the client to a negative pressure airflow room is crucial as varicella zoster is highly contagious and can be transmitted through airborne droplets. A negative pressure room helps contain the virus and filters the air, reducing the risk of spread to other patients and healthcare personnel.

Choice B rationale: Administering aspirin is contraindicated in clients with varicella zoster due to the risk of Reye's syndrome, especially in children and adolescents. Aspirin should not be given to children or adolescents with viral infections because it can cause serious complications affecting the liver and brain.

Choice C rationale: Having visitors remain at least 0.91 m (3 feet) away from the client is insufficient. Varicella zoster is highly contagious and requires more stringent airborne precautions, including having visitors wear masks and follow proper hygiene protocols to minimize the risk of transmission.

To calculate the amount of carbamazepine suspension needed for each dose, you can use the following formula: (Dose required in mg / Concentration available in mg/mL) = Volume to administer in mL In this case: (150 mg / 100 mg/5 mL) = Volume to administer in mL (150 mg / 20 mg/mL) = 7.5 mL Therefore, the nurse should administer 7.5 mL of carbamazepine suspension via the NG tube for each dose.